Dexamethasone 17alpha,21-Ethylorthopropionate [25122-24-1]

Scientific information:
Scientific info:	Dexamethasone 17alpha,21-Ethylorthopropionate is an intermediate in synthesizing 21-Chloro-9-fluoro-11beta,17-dihydroxy-16alpha-methylpregna-1,4-diene-3,20-dione 17-Propionate (C366320), (Clobetasol Propionate EP Impurity C) is an impurity of Clobetasol 17-Propionate (C583500), an topical corticosteroid with anti-inflammatory properties.

Additional information:
Synonyms:	D298808; (11β,16α)-17,21-[(1-Ethoxypropylidene)bis(oxy)]-9-fluoro-11-hydroxy-16-methylpregna-1,4-diene-3,20-dione; 9-Fluoro-11β,17,21-trihydroxy-16α-methyl-pregna-1,4-diene-3,20-dione Cyclic 17,21-(Ethyl Orthopropionate); 11β,17,21-Trihydroxy-16α-methylpregna-1,4-diene-3,20-dione